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UTM cant communicate through tunnel

brohall
I have a strange problem where all communication through the IPSec tunnel works but the UTM on one side can not communicate with any machines on the other side of the tunnel. It is like the UTM doesn't know its own routes and tries to talk through the default gateway instead of though the tunnel.

Are there any specific rules/routing that I have to set up to let the UTM communicate with the machines on the other side of the tunnel?


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  • 0
    Hmm, it sounds like there's something else going on here.  Are you using a SNAT to move some traffic through the tunnel?

    Cheers - Bob
     
    Sophos UTM Community Moderator
    Sophos Certified Architect - UTM
    Sophos Certified Engineer - XG
    Gold Solution Partner since 2005
    MediaSoft, Inc. USA
  • 0
    no, only masquerading on wan interface and dnat. 

    I totally understand why strict routing blocked the traffic since the default IP of the UTM is not listed as approved source IP in the tunnel. With minor adjustment of the firewall rules I got the same behavior as I aimed to get by using strict routing.

    I think it is amazing how flawless Sophos UTM is working compared to other systems I've used.

    Cheers
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